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Prevent memory leaks in the case of early return from wrapper methods using const std::string & parameters.

Browse source 
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6085 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton 2004-08-12 20:57:51 +00:00
commit d86b421950
1 changed files with 61 additions and 70 deletions
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131
Lib/java/std_string.i
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@ -32,16 +32,14 @@ class string;
%typemap(javadirectorout) string "$javacall"
%typemap(in) string
%{if($input) {
const char *pstr = (const char *)jenv->GetStringUTFChars($input, 0);
if (!pstr) return $null;
$1 = std::string(pstr);
jenv->ReleaseStringUTFChars($input, pstr);
}
else {
%{if(!$input) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "null std::string");
return $null;
} %}
}
const char *$1_pstr = (const char *)jenv->GetStringUTFChars($input, 0);
if (!$1_pstr) return $null;
$1 = std::string($1_pstr);
jenv->ReleaseStringUTFChars($input, $1_pstr); %}
%typemap(directorin,descriptor="Ljava/lang/String;") string
%{ $input = jenv->NewStringUTF($1.c_str()); %}
@ -69,21 +67,16 @@ class string;
%typemap(javadirectorin) const string & "$jniinput"
%typemap(javadirectorout) const string & "$javacall"
%typemap(in) const string &
%{$1 = NULL;
if($input) {
const char *pstr = (const char *)jenv->GetStringUTFChars($input, 0);
if (!pstr) return $null;
$1 = new std::string(pstr);
jenv->ReleaseStringUTFChars($input, pstr);
}
else {
%typemap(in) const string &
%{if(!$input) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "null std::string");
return $null;
} %}
%typemap(freearg) const string &
%{ delete $1; %}
}
const char *$1_pstr = (const char *)jenv->GetStringUTFChars($input, 0);
if (!$1_pstr) return $null;
std::string $1_str($1_pstr);
$1 = &$1_str;
jenv->ReleaseStringUTFChars($input, $1_pstr); %}
%typemap(directorin,descriptor="Ljava/lang/String;") const string &
%{ $input = jenv->NewStringUTF($1.c_str()); %}
@ -133,41 +126,40 @@ class wstring;
%typemap(javadirectorout) wstring "$javacall"
%typemap(in) wstring
%{if($input) {
const jchar *pstr = jenv->GetStringChars($input, 0);
if (!pstr) return $null;
jsize len = jenv->GetStringLength($input);
if (len) {
wchar_t *conv_buf = new wchar_t[len];
for (jsize i = 0; i < len; ++i) {
conv_buf[i] = pstr[i];
}
$1 = std::wstring(conv_buf, len);
delete [] conv_buf;
}
jenv->ReleaseStringChars($input, pstr);
}
else {
%{if(!$input) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "null std::wstring");
return $null;
} %}
}
const jchar *$1_pstr = jenv->GetStringChars($input, 0);
if (!$1_pstr) return $null;
jsize $1_len = jenv->GetStringLength($input);
if ($1_len) {
wchar_t *conv_buf = new wchar_t[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = $1_pstr[i];
}
$1 = std::wstring(conv_buf, $1_len);
delete [] conv_buf;
}
jenv->ReleaseStringChars($input, $1_pstr);
%}
%typemap(directorin,descriptor="Ljava/lang/String;") wstring
%{jsize len = $1.length();
jchar *conv_buf = new jchar[len];
for (jsize i = 0; i < len; ++i) {
%{jsize $1_len = $1.length();
jchar *conv_buf = new jchar[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = (jchar)$1[i];
}
$input = jenv->NewString(conv_buf, len);
$input = jenv->NewString(conv_buf, $1_len);
delete [] conv_buf; %}
%typemap(out) wstring
%{jsize len = $1.length();
jchar *conv_buf = new jchar[len];
for (jsize i = 0; i < len; ++i) {
%{jsize $1_len = $1.length();
jchar *conv_buf = new jchar[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = (jchar)$1[i];
}
$result = jenv->NewString(conv_buf, len);
$result = jenv->NewString(conv_buf, $1_len);
delete [] conv_buf; %}
%typemap(javain) wstring "$javainput"
@ -184,42 +176,41 @@ class wstring;
%typemap(javadirectorout) const wstring & "$javacall"
%typemap(in) const wstring &
%{$1 = NULL;
if($input) {
const jchar *pstr = jenv->GetStringChars($input, 0);
if (!pstr) return $null;
jsize len = jenv->GetStringLength($input);
if (len) {
wchar_t *conv_buf = new wchar_t[len];
for (jsize i = 0; i < len; ++i) {
conv_buf[i] = pstr[i];
}
$1 = new std::wstring(conv_buf, len);
delete [] conv_buf;
}
jenv->ReleaseStringChars($input, pstr);
}
else {
%{if(!$input) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "null std::wstring");
return $null;
} %}
}
const jchar *$1_pstr = jenv->GetStringChars($input, 0);
if (!$1_pstr) return $null;
jsize $1_len = jenv->GetStringLength($input);
std::wstring $1_str;
if ($1_len) {
wchar_t *conv_buf = new wchar_t[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = $1_pstr[i];
}
$1_str = std::wstring(conv_buf, $1_len);
delete [] conv_buf;
}
$1 = &$1_str;
jenv->ReleaseStringChars($input, $1_pstr); %}
%typemap(directorin,descriptor="Ljava/lang/String;") const wstring &
%{jsize len = $1->length();
jchar *conv_buf = new jchar[len];
for (jsize i = 0; i < len; ++i) {
%{jsize $1_len = $1->length();
jchar *conv_buf = new jchar[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = (jchar)(*$1)[i];
}
$input = jenv->NewString(conv_buf, len);
$input = jenv->NewString(conv_buf, $1_len);
delete [] conv_buf; %}
%typemap(out) const wstring &
%{jsize len = $1->length();
jchar *conv_buf = new jchar[len];
for (jsize i = 0; i < len; ++i) {
%{jsize $1_len = $1->length();
jchar *conv_buf = new jchar[$1_len];
for (jsize i = 0; i < $1_len; ++i) {
conv_buf[i] = (jchar)(*$1)[i];
}
$result = jenv->NewString(conv_buf, len);
$result = jenv->NewString(conv_buf, $1_len);
delete [] conv_buf; %}
%typemap(javain) const wstring & "$javainput"